# How do you calculate the energy absorbed when #2.0x10^3g# of ice (#CO_2#) sublimate at the normal dry sublimation point? The enthalpy of sublimation 196.3J/g.

##### 1 Answer

Nov 8, 2016

#### Answer:

We want the energy required for the transition:

#### Explanation:

We assume that the temperature of the gas and the solid are EQUAL.

And thus we simply have to work out the product:

What would be the energy change for the reverse transition: