Answer: The temperature change that occurred is 7.62°C
Explanation:
The equation used to calculate heat absorbed follows:
[tex]Q=m\times c\times \Delta T[/tex]
where,
Q = heat absorbed = 18.9 J
m = mass of oxygen gas = 2.6 g
c = specific heat of oxygen gas = 0.954 J/g°C
[tex]\Delta T[/tex] = change in temperature = ?
Putting values in above equation, we get:
[tex]18.9J=2.6g\times 0.954 J/g^oC\times \Delta T\\\\\Delta T=\frac{18.9}{2.6\times 0.954}=7.62^oC[/tex]
Hence, the temperature change that occurred is 7.62°C