What formula can be used to determine the change in the internal energy of the system if the mass

What formula can be used to determine the change in the internal energy of the system if the mass, the temperature difference during heating of the substance and the specific heat capacity of the substance are known? In this case, the volume of the system does not change.

decision
U = Q = cmT

Remember: The process of learning a person lasts a lifetime. The value of the same knowledge for different people may be different, it is determined by their individual characteristics and needs. Therefore, knowledge is always needed at any age and position.