The amount of heat required for the sublimation of 40.0 g of solid dry ice CO₂ is <u>29.3 kJ.</u>
One mole of CO₂ has a mass of 44.0095 g.
Calculate the number of moles n in 40.0 g of CO₂ .

Heat of sublimation is the amount of heat required by 1 mole of a substance to convert itself from solid state to a vapor state at constant temperature and pressure.
1 mole of CO₂ requires 32.3 kJ of energy to sublimate.
Therefore, the heat required to sublimate 0.9089 mol of CO₂ is given by,

Thus, the heat required to sublimate 40.0 g of CO₂ is <u>29.3 kJ</u>.
Answer:
2000J
Explanation:
work done = force * distance
Work done = 100 * 20
Work done = 2000J
Metamorphic rocks are formed by tremendous heat, great pressure, and chemical reactions. To change it into another type of metamorphic rock you have to reheat it and bury it deeper again beneath the Earth's surface.
Hope this helped! :)
The slope of distance/time is velocity. (Actually speed.) . . . The slope of velocity (actually speed)/time is acceleration. ... The slope of acceleration/time has a name, but this website misundersttod it and would not let me post it. Nobody ever talks about it.