Part A Find the amount of heat that must be extracted from 1.0kg of steam at...
Part A
Find the amount of heat that must be extracted from 1.0kg of steam at 150?C to convert it to ice at 0.0 ?C.
Part B
What speed would this 1.0-kg block of ice have if its translational kinetic energy were equal to the thermal energy calculated in part A?
Homework Answers
A)
mass , m = 1 Kg
heat removed = m*(Sice * 50 + Lv + Swater* 100 + Lf)
heat removed = 1 *(2108 *50 + 2270 *10^3 + 4186 * 100 + 334*10^3 )
heat removed = 3128000
heat removed is 3128000 J
B)
Using formula for kinetic energy
0.5 * 1 * u^2 = 3128000
u = 2501.2 m/s
the speed of block is 2501.2 m/s
Add Answer to:
Part A
Find the amount of heat that must be extracted from 1.0kg of
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Prob. 2: Cooling Curve Circle: Emathermier Exothermis?) Cale, the amount of heat this time in calories (cal) - Ilse I cal 4184 for conversions) lost or removed From 1.75 mol water as steam at a convert it to solid ice chilled in a freezer to a temperature of 47.2°C Cumulative Heat Lost To do this, follow the above drawn curve to determine the amount of heat lost for each of the five steps of this process to convert superheated steam...
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