Question

What is the heat capacity of crystalline calcium carbide at 49.0°C?

Answer 1

Step-by-step explanation:

Formula to calculate heat capacity is as follows.

`C_(p)` = a + bT +
`cT^(-2)`

where, a, b and c are constants.

Their values at
`49.0^(o)C` are as follows.

a =
`68.62 * 10^(-3)`

b =
`1.19 * 10^(-5)`

c =
`-8.66 * 10^(10) * 10^(-8)`

Hence, putting the given values into the above formula as follows.

`C_(p)` = a + bT +
`cT^(-2)`

=
`68.62 * 10^(-3) + 1.19 * 10^(-5) * 49.0 + -8.66 * 10^(10) * 10^(-8) * (49.0)^(-2)` kJ/mol K

= 14.43 kJ/mol K

Thus, we can conclude that the heat capacity of crystalline calcium carbide at 49.0
`^(o)C` is 14.43 kJ/mol K.