How can one state of matter be changed into another?

This question was previously asked in
RRC Group D Previous Paper 16 (Held On: 1 Nov 2018 Shift 1)
View all RRB Group D Papers >
  1. By absorbing radiating heat energy
  2. By using electrolytes
  3. By increasing pressure
  4. By using acids and bases

Answer (Detailed Solution Below)

Option 1 : By absorbing radiating heat energy
Free
RRB Group D Full Test 1
2.9 Lakh Users
100 Questions 100 Marks 90 Mins

Detailed Solution

Download Solution PDF

The correct answer is option 1 i.e. By absorbing radiating heat energy.

  • The First law of thermodynamics states that energy can neither be created nor destroyed.
  • In a phase change, the heat added or release helps in the phase change process and the temperature and pressure remain the same.
  • The phase change occurs mainly between the 3 phases solid, liquid and gas and the transition occur due to exchange of energy which occurs through radiation.
  • The amount of radiation energy is calculated by the Stefan-Boltzman's Law
Latest RRB Group D Updates

Last updated on Jun 2, 2025

-> The RRB NTPC Admit Card 2025 has been released on 1st June 2025 on the official website.

-> The RRB Group D Exam Date will be soon announce on the official website. Candidates can check it through here about the exam schedule, admit card, shift timings, exam patten and many more.

-> A total of 1,08,22,423 applications have been received for the RRB Group D Exam 2025. 

-> The RRB Group D Recruitment 2025 Notification was released for 32438 vacancies of various level 1 posts like Assistant Pointsman, Track Maintainer (Grade-IV), Assistant, S&T, etc.

-> The minimum educational qualification for RRB Group D Recruitment (Level-1 posts) has been updated to have at least a 10th pass, ITI, or an equivalent qualification, or a National Apprenticeship Certificate (NAC) granted by the NCVT.

-> This is an excellent opportunity for 10th-pass candidates with ITI qualifications as they are eligible for these posts.

-> The selection of the candidates is based on the CBT, Physical Test, and Document Verification.

-> Prepare for the exam with RRB Group D Previous Year Papers.

Get Free Access Now
Hot Links: teen patti customer care number teen patti pro teen patti master 2024 teen patti master 51 bonus