Question

Which set of values represents standard pressure and standard temperature?(1) 1 atm and 101.3 K(2) 1 kPa and 273 K(3) 101.3 kPa and O°C(4) 101.3 atm and 273°C

Answer 1

The set of values that represents standard pressure and the standard temperature is $\boxed{{\text{3}}{\text{.101}}{\text{.3 kPa and 0}}^\circ{\text{C}}}$

Further explanation:

Temperature:

It is a physical quantity that is used to measure of coldness or hotness of any object or the environment. It also determines the kinetic energy of the molecules. Higher the temperature of any substance, more will be its kinetic energy and vice-versa. It has several units in which it is being measured. These are Kelvin (K), degree Celsius $\left({^\circ{\text{C}}}\right)$ and degree Fahrenheit $\left({^\circ{\text{F}}}\right)$.

Pressure:

It is the physical quantity that is a measure of force acting per unit area of the substance. It is measured in pascal (Pa), atm, torr, bar. There are several instruments that are used to measure the pressure of any system. Some of these are barometer, bourdon tube and manometer.

STP (Standard Temperature and Pressure):

Under STP conditions, the temperature of the system is equal to either ${0^\circ}{\text{C}}$, 273.15 K or ${32^\circ }{\text{F}}$ and the value of pressure is either 1 atm, 101.3 kPa, 1.01325 bar or 760 mm Hg. The term STP was defined by International Union of Pure and Applied Chemistry (IUPAC). It is used to determine the density as well as volume of any gas. Under such conditions, the volume of all ideal gases comes out to be 22.4 L.

(1) According to STP conditions, the pressure of the system should be 1 atm and its temperature should be 273.15 K, not 1 atm and 101.3 K. So this statement (1) is incorrect.

(2) According to STP conditions, the pressure of the system should be 101.3 kPa and its temperature should be 273.15 K, not 1 kPa and 273 K. So this statement (2) is incorrect.

(3) According to STP conditions, the pressure of the system should be 101.3 kPa and its temperature should be ${0^\circ }{\text{C}}$. So this statement (3) is correct.

(4) According to STP conditions, the pressure of the system should be 1 atm and its temperature should be ${0^\circ }{\text{C}}$. So this statement (4) is incorrect.

Learn more:

1. Calculation of the final pressure of the system:  brainly.com/question/6340739

2. Which law states the directly proportional relationship between temperature and pressure? brainly.com/question/1403211

Answer details:

Grade: Senior School

Subject: Chemistry

Chapter: Ideal gas equation

Keywords: pressure, temperature, STP, standard temperature and pressure, Kelvin, bar, torr, atm, pascal, Fahrenheit, Celsius, 22.4 L, density, volume of gas, hotness, coldness, force, area.

Answer 2

Standard Temperature and Pressure (STP) is 0 degree Celsius and 1 atm. We also know that 1atm= 101.3 kPa. Thus, set 3 is the best choice.
Hope that would help :))