m=20g co t=127°c u=?

It looks like you're trying to calculate a specific quantity, but I need some clarification on what you mean by "u."

Since you provided mass (m = 20 g), temperature (t = 127 °C), and "co," it sounds like you could be working with concepts from thermodynamics or heat transfer.

1. Are you trying to calculate internal energy (u) for a gas or another substance?
2. Are you referring to specific heat capacities or heat quantities, such as Q = mcΔT?
3. Are you looking for something related to the ideal gas equation or any specific thermodynamic properties?

Please provide additional context or specify the formula or concept you want to work with!