
p = 1.0e5  
M = 100  
rho_a = 2.93  
rho_c = 2.71  
deltaHm_minus_deltaUm = p * M * ((1/rho_a) - (1/rho_c))
deltaHm_minus_deltaUm = deltaHm_minus_deltaUm * 1e-6

print(deltaHm_minus_deltaUm) 
