Effective filtration pressure was calculated to be 20 mmHg, where glomerular hydrostatic pressure was 70 mmHg. Which other pressure is affecting the filtration process? How much is it?

What is glomerular filtration pressure or net effective filtration pressure?

A gas enclosed in a cylinder is expanded to double its initial volume at a constant pressure of one atmosphere . How much work is done in this process ?

A sample of gas (y = 1.5) is compressed adiabatically from a volume of 1600cm^3 to 400cm^3 . If the initial pressure is 150kPa , what is the final pressure and how much work is done on the gas in the process ?

An ideal gas of volume 1.0L is adiabatically compressed to frac(1)15)th of its initial volume. Its initial pressure and temperature is 1.01xx10^5 Pa and 275^@C respectively. Given Cv for ideal gas = 20.8J/mol.K and gamma = 1.4. How would your answers change, if the process were isothermal?