Answer Posted / shivam

It is the displacement of water in the downward direction.
Mostly it is used to collect the gas that is dissolved in
water. For the collection of water, the density of the gas
should be less than the density of water.

Sr-90, a radioactive isotope, is a major product of an atomic bomb explosion. It has a half life of 28.1 year. Calculate the first order rate constant for this nuclear decay and the fraction of 90Sr that remains after 10 half lives?

6317

---

why athanol-water mixtuere have maximum viscocity in wt% 40?

1776

---

In testing of Cement the formula for water requirement for setting time is as below- Water required for setting time = NC x 0.85 The question is that what is the logic of 0.85 in this formula??

2485

---

Normally entropy is expressed as q/T. But, work and heat have same unit. Why can't it be replaced by work?

2308

---

What can be the supporter of combustion except oxygen.

2861

---

WHAT IS THE SYLLABUS OO GROUP -I?

2425

---

what is induction on electrical insulators

2362

---

a sample of gas occupies a volume of {450.0 ml}at {740 mm Hg}and[16C]determine the volume of this same sample at [760 mm Hg]and [37c]?

5074

---

The use of vermilion on rubric of the Tartar Relation is confirmed by the presence of three lines attributed to HgS. Why should this diatomic have more than one vibrational line?

2716

---

what is the difference between elctrefining and electrolysis?

2305

---

How can be set a responds factor for evaluating a unknown impurity by HPLC

2457

---

. Given that 2Hg2+ (aq) + 2 e- Hg22+(aq) E0 =0.92V Hg22+ (aq) + 2 e- 2Hg(l) E0 =0.85V Calculate standard free energy change and K for the following process at 25oC Hg22+(aq) Hg2+ (aq) + Hg(l)

6702

---

4 Identify the substance oxidized, reduced, oxidizing agent and reducing agent for the following reactions

2535

---

How to accelerate electron capture decay?

2417

---

what kind of question can be asked in interview for UV- VISIBLE & give me answer ?

3888

---