Some products contain iron filings that will react with air to release what type of energy?

Some products contain iron filings that will react with air to release what type of energy?

Correct Answer: thermal
spectral
physical
mechanical

Explanation: Hikers, campers, and other outdoor folks take advantage of chemical reactions to keep their hands warm. Small containers of chemicals can undergo reaction to generate heat that can be used to avoid frostbite. Some products contain iron filings that will react with air to release thermal energy. These types of warmer cannot be reused. Other systems rely on heat being released when certain chemicals crystallize. If the warmer is placed in very hot water after use, the system can be regenerated.

More Random Questions

Q: Which medal has Indian Para Shooter Mona Aggarwal won in the World Shooting Para Sports Tournament on April 29, 2024?
Ans: Gold

Q: Who was awarded the 'Maharashtra Gaurav Award'?
Ans: Dr. Uma Rele

Q: What type of organisms collect the energy from the sun and turn it into organic compounds?
Ans: autotrophs

Q: What was the Vedic term for a kingdom?
Ans: Rajya

Q: The process by which creatures regulate body temperature from the outside through behavioral changes is known as what?
Ans: ectothermy

Q: Who has become the Director General of Armed Forces Medical Services?
Ans: Anupam Kapoor

Q: What was a key factor in ad strength despite macroeconomic issues in 2025?
Ans: Reduced consumer spending

Q: Which is the largest desert in the world?
Ans: Antarctic Desert

Q: What was the impact of Trump’s tariffs on Canada in February 2025?
Ans: Economic decline

Q: Which city has become the most polluted city in the world?
Ans: Begusarai

Q: Which state in Northeast has declared itself free of extremism?
Ans: Manipur

Q: A lumbar air study reveals a spinal cord infarction. Which symptom is most likely?
Ans: Acute paraplegia

Q: What was a major focus of Trump’s administration in February 2025?
Ans: Healthcare reform

Q: Which High Court declared Section 77A unconstitutional on August 5, 2024?
Ans: Madras High Court

Q: Compound forms when atoms of nonmetals form molecules that are held together by what?
Ans: dissonance bonds

Youngistan Junction

Welcome to Youngistan Junction, your ultimate hub for staying updated with the latest in current affairs, general knowledge, and general studies! Whether you're a student gearing up for exams or just someone passionate about expanding your knowledge, Youngistan Junction is here to provide you with an extensive collection of well-curated questions and answers.