Exam Revision

How much heat would need to be absorbed to raise the temperature of 30g of solid copper (c=390) from 25 to 40 degrees? Round your answer to two decimal places. Answer in Joules.

Mathematical Equivalence

ON

If 50,000J was supplied to 1.4kg of liquid water (c=4184). Determine the rise in temperature. Round your answer to two decimal places.

Mathematical Equivalence

ON

How much energy does it take to boil 500g of water? Answer in joules.

Latent heat of fusion=334000J

Latent heat of vaporisation = 2260000J

Mathematical Equivalence

ON

A 1500W stove operates at 40% efficiency for 5 minutes. Determine the effective energy output in joules.

Mathematical Equivalence

ON

6 degree water is added to 400mL of 100 degree water. Determine the mass of cold water required to ensure that the final temperature is 60 degrees. Round to two decimal places. Answer in grams

Mathematical Equivalence

ON

500g of material was heated in an experiment and it temperature recorded at regular intervals. Determine the specific heat capacity of the object.

Mathematical Equivalence

ON

500g of material was heated in an experiment and it temperature recorded at regular intervals. Determine the percentage uncertainty in the specific heat capacity. Round to two decimal places.

Mathematical Equivalence

ON

The graph shows a heating curve for 0.4kg of a substance. Determine the melting point.

Mathematical Equivalence

ON

The graph shows a heating curve for 0.4kg of a substance that is heated with a 200W heater. Determine the latent heat of fusion for the substance. Answer in joules

Mathematical Equivalence

ON

Heat heating curve is shown for 2kg of material. Determine the latent heat of vaporisation. Assume vaporisation took 42kJ.

Answer in joules.

Mathematical Equivalence

ON