mMCQ.

Navigation Menu

Step into mMCQ.

Launch mMCQ. diagnostic

Explore mMCQ.

MDCAT prepFree DiagnosticPricing & SubscribeSign in

Resources

Terms & Conditions

mMCQ.

© 2021 - 2025 mMCQ.All rights reserved.

WhatsApp
  1. Home
  2. MDCAT
  3. Chemistry
  4. Thermochemistry
MDCAT
Chemistry
2021

Chemistry · Thermochemistry

Work through this past-paper style MCQ, then read the full explanation. Practice more chemistry questions on mMCQ with adaptive practice and topic analytics.

Question

The sum of potential and kinetic energy of a system is called _____.

Options
  • A

    Entropy

  • B

    Enthalpy

  • C

    Internal energy

  • D

    Heat energy

Explanation

The total of all the possible kinds of energies in a system is called its internal energy including Kinetic energy and Potential energy.

Entropy is referred to as the disorder of the system, which either remains the same or continuously increases.

Enthaply is a thermodynamic property equivalent to the total heat content of the system. 

Internal energy is the sum of all the different types of energy present within a system, including kinetic and potential energy.

Heat energy is the result of movement of tiny particles, atoms or molecules in an atom, generating heat.

Keep practising Chemistry

Take the free 2 minutes diagnostic to map weak topics, then unlock full Biology, Chemistry, Physics, English, and Logical Reasoning practice for PKR 15,000/month.

Start free diagnosticExplore MDCAT

Tagged under Chemistry · Thermochemistry · 2021