आंतरिक ऊर्जा (Internal Energy) की अवधारणा ऊष्मागतिकी के किस नियम से मुख्य रूप से मिलती है?

Thermal equilibrium between two bodies means they have the same:

Clinical thermometers should NOT be cleaned or sterilized using boiling water because:

In a standard laboratory thermometer, the temperature measurement range is typically: