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Syllabus

state and derive mayer's formula

Derive an expression for the work done during isothermal process.

what is the relation between C

_{p}and C_{v}? please answer soonDuring an Adiabatic Process, the pressure of a gas is directly proportional to the cube of its absolute temperature. Find the ratio of C

_{p}/Cv. Please help, its important. Thanks!Why G is called a universal constant.?

What is heat engine? Explain the principle of working of heat engine ? Define its efficiency ?

The temperatures of equal masses of three different liquids A , B and C are 12 degree celcius , 19degree celcius and 28degree celcius respectively. The temperature when A and B are mixed , is 16degree celcius andwhen B and C are mixed , is 23 degree celcius . What will be the temperature when A and C are mixed ?

What is the efficiency of a carnot engine working between ice point and steam point.

Chapter-Heat and Thermodynamics

1.Steam at 100

^{o}C is passed into 1.1kg of water contained in a calorimeter of water equivalent 0.02kg at 15^{o}C till the temperature of the calorimeter rises to 80^{0}C . The mass of steam condensed in kilogram is :(a)0.13 (b)0.065 (c)0.260 (d)0.135

A slab of ice at 273K and at atmospheric pressure melts.(a) What is the nature of work done on the ice- water system by the atmosphere? (b)What happens to the internal energy of ice water- system?

Define

Quasi Static Processin simple words ?i have the the definition but not able to fully understand it....plz help.

Calculate the increase in internal energy of 1 kg of water at 100 degrees C when it is converted into steam at the same temperature and at 1atm.Te density of water and steam are 1000kg/m^2 and 0.6 kg m^ -3 respectively. The Latent heat of vapourisation of water is 2.25 X 10^6 J kg^ -1.

why is it named zeroth law?????? wat is its significance?????

derive the formula of latent heat of fusion of ice by mixture method.

Show that slope of p-v curve is steeper for adiabatic process than that for isothermal process.

derive the expression for pressure exerted by gas on the walls of cubical container...

What are limitations of first law of thermodynamics?How are these overcome in second law of thermodynamics?

An ideal gas at 27 degree C is compressed adiabatically to 8/27 of its original volume. The rise in Temperature is ?

(Here degree of freedom is 5/3 )

how is the slope of an adiabatic curve steeper than an isothermal curve ?

a certain gas at atmospheric pressure is compressed adiabatically so that its volume becomes half of its original volume .Calculate the resultinfg pressure in N/m square . Take gamma = 1.4, for the gas and kindly explain the solution .

one gram of water at 373K is converted into steam at the same temperature. the volume of 1 cubic cm of water bcums 1671cubic cm on boiling. calculate change in internal energy if latent heat of vaporisation is 540 cal/g.

Two carnot engine A and B are operated in series.The first one A receives hat at 800K and rejects to a reservoir at TK. The second engine B receives the heat rejected by the first engine and in turn rejects to a heat reservoir at 300K.Calculate the value of T ,when outputs of the two engines are equal.

Prove that Cp-Cv=R

what is carnot engine?

whats the proof for PV=nRT?

Why a gas has two principle specific heat capicities? What is the significance of Cp-Cv & Cp/Cv where symbols have usual meaning.

^{-1}C^{-1}strikes a target with velocity of 300 ms^{-1}.If the bullet is completely stopped by target ,find the rise in temperature of the bullet.Assume that the heat produced is equally shared by the target and the bullet.(J=4.2 J cal^{-1}). ANS:167.4 Cwhat is newton's law of cooling?

^{-1}mol^{-1}.if the speed of sound in this gas at NTP is 952 m/s,then the heat capacity at constant pressure isQ.The variation of pressure P with volume V for an ideal diatomic gas is parabolic as shown in the figure. The molar specific heat of the gas during this process is$\left(1\right)\frac{9R}{5}\left(2\right)\frac{{\displaystyle 17R}}{{\displaystyle 6}}\phantom{\rule{0ex}{0ex}}\left(3\right)\frac{{\displaystyle 3R}}{{\displaystyle 4}}\left(4\right)\frac{{\displaystyle 8R}}{{\displaystyle 5}}$

prove that c

_{p}-c_{v}=R?In a refrigerator,heat from inside at 277K is transferred to a room at 300K.How many joule of heat will be delivered to the room for each joule of electric energy consumed ideally?

^{2}, where a is constant. What is the molar heat capacity of the gas for process ?(1) $\frac{17R}{6}$ (2) $\frac{6R}{17}$

(3) $\frac{13R}{6}$ (4)$\frac{16R}{7}$

Q37. In a thermodynamic process two moles of a monoatomic ideal gas obeys P $\alpha $ V

^{-2}, if temperature of the gas increases from 300 K to 400 K, then find work done by the gas ( where R = universal gas constant)(1) 200 R (2) - 200 R

(3) - 100 R (4) - 400 R

pls explain the diathermic wall.

what is the difference between microscopic and macroscopic ???????

is temperature microscopic or macroscopic ??????

Obtain an expression of a refrigerator for its coefficient of performance.

Why is it difficult for a man to walk on sand while camel walks easily on sand? I have a difficulty in answering this! Please help me sir.

Plzzz explain experts

why is adiabatic curve more steeper than isotherm curve?

per second square. Specific gravity of mercury is equal to 13.6.

A B

(A) 15K/16

(B) 6K/13

(C) 5K/16

(D) 2K/13

14. A black metal foil is warmed by radiation from a small sphere at temperature "T" and at a distance "d". It is found that the power received by the foil is P. If both the temperature and distance are doubled, the power received by the foil will be:

(A) 16P

(B) 4P

(C) 2P

(D) p

Derive efficiency of carnot engine and carnot theorem..

A gas is suddenly compressed to half of its original volume. Calculate the rise in temperature,the original temperature being 27

^{0}C. Given Gamma=1.5.