What is meant by standard state?

  • A
    $1 \, \text{bar pressure and } 273 \, K \text{ temperature}$
  • B
    $1 \, \text{atm pressure and } 298 \, K \text{ temperature}$
  • C
    $1 \, \text{bar pressure and } 298 \, K \text{ temperature}$
  • D
    $1 \, \text{atm pressure and } 273 \, K \text{ temperature}$

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