Answer:
A.) 273 K
Explanation:
Standard temperature, often referred to as standard room temperature, is defined as 0 degrees Celsius (0°C). To convert this temperature to Kelvin (K), you can use the following formula:
K = °C + 273.15
So, to find the temperature in Kelvin corresponding to 0 degrees Celsius:
K = 0°C + 273.15 = 273.15 K
Therefore, the temperature corresponding to standard temperature as 0 degrees Celsius is:
a. 273 K
B-2s
C-400s
D-800s
Answer:
Option (B)
Explanation:
mass of car, m = 2000 kg, initial velocity of car, u = 40 m/s,
Force, F = 40,000 N, Final velocity, v = 0 m/s
Let the impact time be t.
By use of Newton's second law
F = m a
where, a be the acceleration and m be the mass.
40000 = 2000 x a
a = 20 m/s^2
Acceleration is negative because the car is stopped.
Use first equation of motion,
v = u + a x t
0 = 40 - 20 x t
t = 2 second
The combined gas law has no official founder; it is simply the incorporation of the three laws that was discovered. The combined gas law is a gas law that combines Gay-Lussac’s Law, Boyle’s Law and Charle’s Law. Boyle’s law states that pressure is inversely proportional with volume at constant temperature. Charle’s law states that volume is directly proportional with temperature at constant pressure. And Gay-Lussac’s law shows that pressure is directly proportional with temperature at constant volume. The combination of these laws known now as combined gas law gives the ratio between the product of pressure-volume and the temperature of the system is constant. Which gives PV/T=k(constant). When comparing a substance under different conditions, the combined gas law becomes P1V1/T1 = P2V2/T2.