High altitude mountain climbers do not eat snow, but always melt it first with a stove. To see why, calculate energy absorbed from your body if you: (more information see details)?
a.) eat 1.0kg of -15 degrees Celsius snow which your body warms to body temperature of 37 degrees Celsius (ANSWER: 5.210^5J)?
b.) melt 1.0kg of -15 degrees Celsius snow using a stove and drink the resulting 1.0kg of water at 2 degrees Celsius, which your body has to warm to 37 degrees Celsius (ANSWER: 1.510^5)?
a.) eat 1.0kg of -15 degrees Celsius snow which your body warms to body temperature of 37 degrees Celsius (ANSWER: 5.210^5J)?
b.) melt 1.0kg of -15 degrees Celsius snow using a stove and drink the resulting 1.0kg of water at 2 degrees Celsius, which your body has to warm to 37 degrees Celsius (ANSWER: 1.510^5)?
1 Answer
Feb 11, 2018
(a)
- Heat required to change
#1.0\ kg# ice at#-15^@C# to Ice at#0^@C# #=ms_(ice)DeltaT=1xx(2.108xx10^3)xx15=3.162xx10^4\ J# - Heat required to change from state of
#1.0\ kg# ice to water#=mL_(ice)=1xx3.34xx10^5=3.34xx10^5\ J# - Heat required to change
#1.0\ kg# water at#0^@C# to water at#37^@C# #=ms_(water)DeltaT=1xx(4.187xx10^3)xx37=1.549xx10^5\ J#
Total heat required
(b)
Heat required to warm
