Calculate the amount of heat required, to raise temperature of ice of 200 g at -20 c to 0 c - Physics - Calorimetry

Question

Calculate the amount of heat required, to raise temperature of ice
of 200 g at -20 c to 0 c and then to melt it, gives C=2 1 Of=336

Shivam Kumar · Accepted Answer

Dear Student,

We know, for icec=2
1 J/gmL=336 J/gmHeat required to convert ice at -10oC to ice at 0oC:Q1=mc△t=200×2
1×20=8400JHeat required to convert ice at 0oC to water at 0oC:Q2=mL=200×336=67200JTotal heat=Q1+Q2=75600J

Regards,

Calculate the amount of heat required, to raise temperature of ice of 200 g at -20.c to 0.c and then to melt it, gives C=2.1 Of=336