Physics C AFL Quiz

How much Energy would be required to boil 750g of water? Select the correct equation for this problem

What is the final temperature of water if 25 800J was added to 0.40 kg of water at 30˚C ?

Pick the correct equation which can help solve this problem.

Find the energy required to raise the temperature of 1.5 kg of lead by 250 ˚C

Lead specific heat capacity = 128 J/kg˚C

• 125 400 J

• 68 J

• 92 500 J

• 48000J

Calculate the Energy given to 2 kg of aluminium which caused the temperature to go from 25˚C to 77˚C

Aluminium has a specific heat capacity of 900 J/kg˚C

• 93600 J

• 138 600J

• 45000 J

• 90000J

What is the Energy required to melt 5.4 kg of ice?

Water has a the following data:

Specific Heat Capacity: 4200 J/kg˚C

Latent heat of fusion of 337 000 J / kg

Latent Heat of vapourization: 2.23 M J / kg

• 12.265 J

• 12 265 000 J

• 1,853,500 J

• 23100 J

Find the energy to melt 0.06 kg of copper, which melts at 1085˚C

Data for Copper:

Specific Latent Heat of Vapourization = 240 000 000 J/kg

Specific Heat capacity = 385 J/kg˚C

Specific Latent Heat of fusion = 206 000 J/kg

• 12360 J

• 23.1 J

• 14.4 M J

What is the specific heat capacity of copper, if 20 000J caused a 400g pipe to heat up by 130˚C ?

• 61.5 J / kg˚C

• 0.385 J / kg˚C

• 104 M J

• 385 J / kg ˚C

Calculate the change in temperature if 1.6 kg of aluminium is given 23.8 kJ of heat energy

Aluminum S.H.C = 300 J/kg˚C

• 187.5˚C

• 0.132 ˚C

• 49.5 ˚C

• 11 424 ˚C

Find the Energy required to melt 450 g ice at 0˚C.

Latent Heat of Fusion: 337000 J/kg

• 151.6 MJ

• 151 650 J

• 0J

• 151.6 GJ

Find the Energy given to 0.25kg of Aluminium which has a specific heat capacity 0.3 kJ/kg˚C and had a temperature rise of 89˚C

• 667.5J

• 6675J

• 0.6675 J

• 0.06675 J