Entropy -- can only calculate entropy only at constant temperature?

Outrageous

Is that possible to calculate entropy when dq=+100J , temperature change from 271K to 273K ?
Ice melt until 273K , not an isolated system.

Or I can only calculate entropy only at constant temperature?

Thank you

Outrageous	Entropy -- can only calculate entropy only at constant temperature? Tweet Is that possible to calculate entropy when dq=+100J , temperature change from 271K to 273K ? Ice melt until 273K , not an isolated system. Or I can only calculate entropy only at constant temperature? Thank you