Question : What is the defined value of kB in the given equation? kB= PV/TN.
Option 1: 1.38 × 10-23JK–1
Option 2: 1.08 × 10-23JK–1
Option 3: 1.68 × 10-23JK–1
Option 4: 0.38 × 10-23JK–1
Correct Answer: 1.38 × 10 -23 JK –1
Solution : The correct answer is 1.38 × 10 -23 JK –1.
In the equation k B = PV/NT, where:
- k B is the Boltzmann constant,
- P is pressure,
- V is volume,
- T is temperature,
- N is the number of particles (molecules or atoms),
the Boltzmann constant (k B ) is a fundamental physical constant and has a defined value in the International System of Units (SI). The Boltzmann constant is approximately 1.380649×10 -23 JK -1 .
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