${\text{t}}_1={\text{T}}_1-273,15=183,7\text{K}={\left(183,7-273,15\right)}^{\circ }\text{C}=-{89,45}^{\circ }\text{C}$ ${\text{t}}_1={\text{T}}_1-273,15=183,7\text{K}={\left(183,7-273,15\right)}^{\circ }\text{C}=-{89,45}^{\circ }\text{C}$    

${\text{t}}_2={\text{T}}_2-273,15=195,2\text{K}={\left(195,2-273,15\right)}^{\circ }\text{C}=-{77,95}^{\circ }\text{C}$