The slope of an isochore (a line where volume does not change) for an ideal gas is given by ‌
dp
dT
=‌
nR
V
, where: n= number of moles,R= gas constant,V= volume. Here, the slope is 0.082atmK−1,n=1, and R=0.082Latmmol−1K−1. Substitute the known values into the formula: 0.082=‌
1×0.082
V
Solve for V : V=1L Now, use the ideal gas equation: pV=nRT. Substitute the values: p×1=1×0.082×12.2 Calculate the multiplication: 0.082×12.2=1.0004 So, p=1.0004atm. Round to nearest whole number: p=1atm