The answer is 4 because in that century the romans empire was raided
Answer:
Oceanic trenches
Explanation:
Oceanic Trenches are hemispheric-scale long but narrow topographic depressions of the sea floor
Avogadro's number; it describes the number of representative particles in one mole of a substance. Avogadro's number is. 6.022×10^23mol
Answer:
C. T>617 K
Explanation:
We are given that
We have to find the temperature at which the reaction is spontaneous.
When
Therefore, the reaction is spontaneous at certain range of temperature.
Option A is not true.
When is negative, then the reaction is spontaneous.
When T<50
Suppose T=49 K
Therefore, .Hence, the reaction is not spontaneous.
Option B is wrong.
C.T>617K
Suppose T=618 K
Therefore, .Hence, the reaction is spontaneous.
So, option C is true.
D.T<617 K
Suppose T=616 K
Therefore, .Hence, the reaction is not spontaneous.
So, option D is not true.
Answer:
The new pressure is 0.167 atm
The correct answer is option A
Explanation:
Step 1: Data given
Volume of the gas = 22.4 L
Pressure of the gas = 0.265 atm
The volume increases to 35.52 L
Step 2: Calculate the new pressure
P1*V1 = P2*V2
⇒with P1 = the initial pressure = 0.265 atm
⇒with V1 = the initial volume = 22.4 L
⇒with P2 = the new pressure = TO BE DETERMINED
⇒with V2 = the increased volume = 35.52 L
0.265 atm * 22.4 L = P2 * 35.52 L
P2 = (0.265 atm * 22.4 L) / 35.52 L
P2 = 0.167 atm
The new pressure is 0.167 atm
The correct answer is option A