Your expression is incorrect. Find the equation of the line of pressure as a function of temperature. Then just plug in 98. What do you get?
I need to find the pressure of steam at
however my steam table does not give a value for 98C, however does give a value for 95C and 100C,
I am told in order to find the pressure of steam at 98C I have interpolate from the tables,
I am not sure how to do this?
at 95C the pressure is 0.08453MPa
and at 100C the pressure is 0.1013MPa
and since 98C is not half way between, how would I interpolate?
is it Multiplying by 3/5 as its 3 units away from 95 and after that another 5 units to 100C
Is this correct?