Question

High-altitude mountain climbers do not eat snow, but always melt it first with a stove. To see why, calculate the energy absorbed from a climber's body under the following conditions. The specific heat of ice is 2100 J/kg⋅C∘, the latent heat of fusion is 333 kJ/kg, the specific heat of water is 4186 J/kg⋅C∘.

Part A Calculate the energy absorbed from a climber's body if he eats 0.70 kg of -15∘C snow which his body warms to body temperature of 37∘C. Express your answer to two significant figures and include the appropriate units.

PLEASE Express your answer to two significant figures and include the appropriate units.

Part B Calculate the energy absorbed from a climber's body if he melts 0.70 kg of -15∘C snow using a stove and drink the resulting 0.70 kg of water at 2∘C, which his body has to warm to 37∘C.

PLEASE Express your answer to two significant figures and include the appropriate units.

Answer 1