प्र.4 प्याज़ का इस्तेमाल किन-किन कामों में किया जाता है?​

Kinetic energy of a certain amount of gas of mass m is = [tex]\frac{1}{2}[/tex] m v² [Here, v = r.m.s velocity of the gas]

We know, the r.m.s velocity = [tex]\sqrt{\frac{3RT}M} }[/tex]

Here, T = Temperature

         R = Universal gas constant

         M = Molecular weight of the gas

∴ K.E. =  [tex]\frac{1}{2}[/tex] × m × [tex]\frac{3RT}{M}[/tex] [By putting the value of v]

⇒ K.E. = [tex]\frac{3}{2}[/tex] n RT [n = number of moles of the gas, n= m/M]

For 1 mole of gas,

K.E. =  [tex]\frac{3}{2}[/tex] RT

So,

• The average molar K.E. does not depend on the molecular weight of the gas.
• It depends only upon the Temperature.

As the temperature is same, so, the average molar kinetic energy of N₂ and H₂ will also be same.

Answer:

a guilty conscience needs no accuser proverb A feeling of guilt and remorse can be so strong that it will prompt an offender to confess, even if no one is requiring them to do so. Gary felt so guilty after taking the money out of Bill's wallet that he confessed and returned it a day later. A guilty conscience needs no accuser.

Explanation:

Answer:

A guilty conscience needs no accuser. Meaning: "People who know they have done wrong reveal their guilt by the things they say or the way they interpret what other people say."

Answer:

Do it or leave it.

Explanation:

A compound sentence is a complete sentence that contains two or more independent clauses joined by a conjunction, a semicolon, or a semicolon and a transitional word or phrase. The English language has many types of sentences.  In simple words, compound sentence is joining two or more independent sentences by a conjunction. In the given question, the independent clauses are "Do it" and "Leave it" and the conjunction which joins the sentences are "or".

Some more examples of compound sentences are given below for better understanding:-

• Sarah walked to class, but Kevin ran.
• The photographer held up a bear, and the little boy smiled.
• I want hamburgers, but Lois wants pizza.

Answer:

I answer you when you mark me branlist